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79234201 = 521152081
BaseRepresentation
bin1001011100100…
…00010010011001
312112002111220001
410232100102121
5130240443301
611510133001
71651323334
oct456202231
9175074801
1079234201
11407a8912
1222651161
1313552957
14a74761b
156e51c01
hex4b90499

79234201 has 4 divisors (see below), whose sum is σ = 79386804. Its totient is φ = 79081600.

The previous prime is 79234189. The next prime is 79234223. The reversal of 79234201 is 10243297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10243297 = 97105601.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 57153600 = 4699^2 + 7560^2 .

It is a cyclic number.

It is not a de Polignac number, because 79234201 - 27 = 79234073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79234201.

It is not an unprimeable number, because it can be changed into a prime (79234271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75520 + ... + 76561.

It is an arithmetic number, because the mean of its divisors is an integer number (19846701).

Almost surely, 279234201 is an apocalyptic number.

It is an amenable number.

79234201 is a deficient number, since it is larger than the sum of its proper divisors (152603).

79234201 is a wasteful number, since it uses less digits than its factorization.

79234201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152602.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 79234201 is about 8901.3595029074. The cubic root of 79234201 is about 429.5076408884.

Adding to 79234201 its reverse (10243297), we get a palindrome (89477498).

The spelling of 79234201 in words is "seventy-nine million, two hundred thirty-four thousand, two hundred one".

Divisors: 1 521 152081 79234201